DANGER
Hazard for health through contact with inert protective gas
Inert protective gas can emerge uncontrolled when the device is opened directly after
switching off. Direct contact with inert protective gas is a high health risk, including risk
of suffocation.
b
Interrupt the inert gas feed before opening the device so that only the volume of
inert gas in the device can escape.
b
Ensure good ventilation and air exchange.
b
Never open the device when the room is too small.
CAUTION
Risk of device damage when the optics purge air is switched off too soon
Hot and contaminated gas can cause device damage when the purge air is switched off
when the device is still in the gas duct.
b
Do not switch the purge air unit off as long as the device is still in the gas duct.
Electrical safety
WARNING
Endangerment of electrical safety during installation and maintenance work when the
power supply is not switched off
An electrical accident can occur during installation and maintenance work when the
power supply to the device and/or lines is not switched off using a power isolating
switch/circuit breaker.
b
Before starting the work, ensure the power supply can be switched off using a
power isolating switch/circuit breaker in accordance with DIN EN 61010.
b
Make sure the power isolating switch is easily accessible.
b
An additional separation device is mandatory when the power isolating switch can‐
not be accessed or only with difficulty after installation of the device connection.
b
The power supply may only be switched on again after work completion or for test
purposes by the persons carrying out the work under consideration of the valid
safety regulations.
DANGER
Endangerment of electrical safety through missing power isolating switch
An electrical accident can occur during installation and maintenance work when the
power supply to the device and/or lines cannot be switched off using a power isolating
switch/circuit breaker.
b
Ensure the power supply can be switched off using a power isolating switch/circuit
breaker in accordance with DIN EN 61010-1:2010.
b
An additional disconnecting device is mandatory when the disconnector switch is
difficult to access or cannot be accessed when connecting the equipment after
installation.
9
MAINTENANCE
68
O P E R A T I N G I N S T R U C T I O N S | GM700 Ex
8019532/100Q/V1-1/2018-08 | SICK
Subject to change without notice